Do you physically have the tickets in hand already or did you Print them from home. For all my tickets that are print from home, I use a program called "Cute PDF" to change them to PDF files. Then I email the PDF file to each person who needs a ticket.
I'm afraid to say, that if you put them at Will Call, they may need YOU there for your party to get the ticket. I did that once. I called my ticket rep and told him to put 4 on Will Call. Some of my friends had a problem picking them up for some reason.
Maybe call your ticket rep and see if he can do anything for you. I call mine all the time with stupid questions (not that YOURS are stupid but mine can be). He calls me back or emails me information. He's a great guy!
I have the tickets in hand, not the season ones, but the ones they print at the park. I can scan them and mail the image, but it's not identical to the print at home ones. Not sure if they accept any old ticket copy, even with a bar code.